22858739 has 2 divisors, whose sum is σ = 22858740. Its totient is φ = 22858738.

The previous prime is 22858721. The next prime is 22858747. The reversal of 22858739 is 93785822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22858739 - 2⁸ = 22858483 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22858739.

It is not a weakly prime, because it can be changed into another prime (22858769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11429369 + 11429370.

It is an arithmetic number, because the mean of its divisors is an integer number (11429370).

Almost surely, 2^22858739 is an apocalyptic number.

22858739 is a deficient number, since it is larger than the sum of its proper divisors (1).

22858739 is an equidigital number, since it uses as much as digits as its factorization.

22858739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 44.

The square root of 22858739 is about 4781.0813630391. The cubic root of 22858739 is about 283.8032881993.

The spelling of 22858739 in words is "twenty-two million, eight hundred fifty-eight thousand, seven hundred thirty-nine".